The QA730U is finely designed to work within your digital
system. Your digital system will function together as parts
of an instrument. Your QA730U is built to fit effortlessly
into your system, becoming a “bridge” between your computer
and your DAC.

Great care was taken in the design of the QA730U to isolate
the noisy computer/USB environment from the digital audio
output. The USB receiver and processing are powered by the
computer, while the output line drivers are powered by a
separate isolated linear power supply.

The QA730U's USB is designed to work with both Apple
Macintosh and Windows PC computers. Microsoft Windows PC’s
require the included Windows driver which works with Windows
XP, Vista and 7 and windows 8 and Windows 10.

24bit/192KHz wav
and DSD Support

QA730U supports Studio Master wav files in 24bit/192KHz and
DSD64/1bit/Stereo. DSD files can be streamed out of
the digital output in DoP format.